“At first glance at this scripture, we might think that grace is offered to us only chronologically after we have completed doing all we can do, but this is demonstrably false…“I understand the preposition ‘after’ in 2 Nephi 25:23 to be a preposition of separation rather than a preposition of time. It denotes logical separateness rather than temporal sequence. We are saved by grace ‘apart from all we can do,’ or ‘all we can do notwithstanding,’ or even ‘regardless of all we can do.’ Another acceptable paraphrase of the sense of the verse might read, ‘We are still saved by grace, after all is said and done’”

Source: Believing Christ